Error loading in VCF file

[maggiebr0wn]

I'm trying to load in a VCF file for:

snps_from_vcf <- snps.from.file(file = vcf_file, search.genome = BSgenome.Hsapiens.UCSC.hg19, format = "vcf" )

And I am receiving the following error:

Error in open.TabixFile(VcfFile(file)) : 'indexname' must be character(1)

I've updated all relevant packages, updated my R version, I'm not sure how to mitigate this problem...

[Simon-Coetzee]

Hi, does the index of the vcf file exist?